A Blockbuster Movie Had Just Premiered on Exactly 1257 Screens

Multiple Choice

A blockbuster movie had just premiered on exactly 1257 screens throughout the country.Within the first week,a few theatres were chosen at random,and then theater management interviewed approximately 5% of the theatregoers at those selected theatres.All these theatregoers loved the movie,therefore management decided to increase the number of showings per week.Identify the type of sampling used in this example.

A) Voluntary response sampling
B) Systematic sampling
C) Convenience sampling
D) Simple random sampling
E) Multistage sampling